Global Patent Index - EP 0179208 B1

EP 0179208 B1 19870930 - PROCESS AND INSTALLATION FOR THE HEAT TREATMENT OF FINE-GRAINED MATERIAL

Title (en)

PROCESS AND INSTALLATION FOR THE HEAT TREATMENT OF FINE-GRAINED MATERIAL

Publication

EP 0179208 B1 19870930 (DE)

Application

EP 85109638 A 19850731

Priority

DE 3439129 A 19841025

Abstract (en)

[origin: US4616575A] A method and apparatus for the heat treatment of fine-grained material wherein the degree of efficiency of the last cyclone of a multi-cyclone preheater preceding a filter is reduced in the finest grain size range and at least a proportion of the filter dust deposited in the filter is passed directly to the calciner. In this way material is prevented from caking and flowing in batches in the apparatus.

IPC 1-7

C04B 2/10

IPC 8 full level

C04B 2/10 (2006.01)

CPC (source: EP US)

C04B 2/10 (2013.01 - EP US)

Citation (examination)

  • ZKG 1980, Heft 10, S. 493.497
  • ZKG 1984, Heft 1, S. 41-49
  • Asociacion Nacional de Fabricantes de Cal, Convencion Anual 1983, S. 1-6, 31, 32, 37-60, Sig. 5.12
  • Gas Suspension Calcination of Industrial Minerals, Bent Maerks, c/o F.L. Smidth & Co., Copenhagen, inneres und äusseres Deckblatt, Inhaltsverzeichnis, S. 1-3, 14,15, Fig. 5 und 6
  • Investigations into Cyclone Dust Collectors, A.J. ter Linden, Institution of Mech. Engineers, London 1949, Deckblatt, S. 3-10

Designated contracting state (EPC)

AT BE DE FR GB IT

DOCDB simple family (publication)

EP 0179208 A1 19860430; EP 0179208 B1 19870930; AT E30009 T1 19871015; BR 8504505 A 19860715; DE 3439129 A1 19860507; DE 3560711 D1 19871105; ES 548183 A0 19870201; ES 8703131 A1 19870201; GR 851959 B 19860213; US 4616575 A 19861014

DOCDB simple family (application)

EP 85109638 A 19850731; AT 85109638 T 19850731; BR 8504505 A 19850916; DE 3439129 A 19841025; DE 3560711 T 19850731; ES 548183 A 19851024; GR 850101959 A 19850809; US 77658385 A 19850916